Pump.



D. J. MUNGY. PUMP. APPLIGATION FILED JAN. 23, 1913.

1,088,238. Patented Feb. 24, 1914 alftouwg clear,

Unrriln STATES, PAT'ENT OFFICE.

DAVID MUNCY, oF LooKNEY, TEXAS, AssrGNon .fro w. r. JoNs, or Los ANGELES,

CALIFORNIA. y j

Specification of Letters Patent.

PUMP.

Patented Feb. 24, 191 f1.

Application led January 23, 1913. Serial No. 743,812.

T o all whom it may concern:

Be it known that I, DAVID J. MUNCY, a citizen of the United States, residing at Lockney, in the county of Floyd and State of Texas, have invented certain new and useful Improvements in Pumps; and I dohereloy declare the following -to be afull,

and exact description of the invention, such as will enable others skilled in the art-to which it appertains to make and use the same. l

This invention relates to pumps and it more particularly relates to pump valveoperating mechanisms. y

An object .of the invention is to greatly increase the ow of water through the pump without increasing ythe length of the stroke -or number of strokes of the plunger rod.

Another object of the invention is to provide a simple and improved mechanism whereby the water may be simultaneously lifted by force and by suction through the pump cylinder.

` Other objects and advantages may be recited hereinafter and in the claims.

In the accompanying drawings, which supplement this specification, Figure 1 is a vertical sectional View through the pump cylinder and casing on the line 1-1 of Fig. 2; Fig. 2 is a horizontal sectional view on the line 2---2 of Fig. 1. Y'

In these drawings in which similar reference characters correspond with similar parts, throughoutl the several views, the pump cylinder 5 is seated within an ordinary well casing 6, and within the cylinder V5 is seated a frame 7 having convexed ends 8 which are fitted snugly within the cylinder, against the opposite sides of the inner Wall thereof. Screws 9, or other `proper means may be employed for securing the frame within the cylinder. This trame may be of any suitable `'form or structurdbut inthe present instance, it ycomprises two parallel bars 10 having their ends -connected by means of the externally convexedgend sections 11, Pivots or axles 12 are j eated in and supported by the bars` 1-0, and, on

these pivots is journaled a pair of similar spur-gear wheels 13, having bosses 14 which contact withthe bars 10,- so as to hold the gear teeth in equal spaced relation to the bars 10.

Y A double rack 15, having gear teeth on two opposite sides, is engaged with the adjacentlteeth of both gearwheels, and is adapted tohe raised and4 lowered by said gear wheels when they are rotated. On the lower end of the rack and to member 15 is at the same time, to minimize the frictiom' I provide rollers 19 in rContact with the plane surfaces of the racks 18, opposite to the teeth thereof, and I also provide rollers 20 against the opposite surfaces which are connectedby said teeth; said rollers 19 and 20 heilig journaled in suitable bearings on the framelO. Rollers 21 are also mounted .on the frame`10,`a`nd bear against two opposite-sides of the-rack 15, so as to retain the same in vproper position and engagement with the wheels 13. Any proper means, as for instance a retainer ring 22 may be secured within the cylinder 5, for preventing disengagement of the racks and gear wheels,A

as obviously, when thefpiston 17 has moved into contact with the ring 22, the racks 18 and gear wheels 13 are still in mesh, and. the said gear wheels are prevented from further rotation by means of said ring and said racks, and therefore. the rack 15 which is 'also still in mesh with the wheels 13, is prevented from disengagement with the teeth of the wheels 13.l

In operati-n, assuming that the upper piston 17 is connected with a plunger rod -(not shown), either through the medium of the upward extension of theracks 18, or by other suitable means, the said piston 17 may be caused to slide up and down in the cylinder between the gear wheels and the ring 22,

.thereby rotating the wheels 13 and thus causing the rack 15 to rise as the racks 18 descend. Now, assuming that the operation of the casing containing the cylinder `5 is wholly or partially submerged, the water or other liquid which is between the pistons 16 and 17 will be forced upward through the latter, as the piston 1-7 descends and the pist0n 16 ascends. Next, as the motion of the pistons is reversed,the space therebetween is greatly enlarged, thereby tending4 to cause a Vacuum vbetween the pistons, and the consequent suction draws water or other liquid upward through the valve 16 and fills the space between the pistons; and, at the same time, the water liquid which has previously been forced through the piston 17 is now raised higher. Now, assuming that a stroke ot' four inches is imparted to the piston 17 it will be seen tl at a stroke of four inches is also imparted'to the piston 1G through the inediun'i ot the wheels 13, so that when the piston 17 is in its upper position the piston 16 is eiffht 'inches farther removed therefrom that when it is in its lower position; so that each four-inch down-stroke of the pump sucks in an eightdneh column of water or oil, while each four-inch up-stroke vof the pump discharges said eight-inch column of water or other liquid through the ,upper Valve. v

" It will be seen that l have provided a pump of this character which is simple in construction, and which is fully capable of attaining the foregoing objects, in' a thor- `oughly practical and eflicient ufianner.

' l do notv limit my invention to the exact vdetails of construction, combination and arrangement of parts, :is-herewith illustrated and described, but my invention may only be 'limited by a reasonable interpretation of the claims, nor do l confine the manufacture of this pump to any certain material or size,

but reserve the righ t to use any suitable material, or in any desired sizes; and forany use to which the pump could be used.

I claim:

.f 1. In a pump, a cylinder, pistons. slidable therein, oppositely extending` rack bars secured to said pistons, a frame secured in said cylinder, said frame comprising spaced parallel bars, pinions mounted between said pa allel bars and meshing with said rack bars, and means for guiding said rack bars, said means comprising rollers secured to said frame and bearing against said rack bars.

2. In a pump, a cylinder, pistons slidable therein, oppositely extending` rack bars secured to said. pistons, a. frame secured in said cylinder, said frame comprising spaced parallel bars, end sections comiectingsaid bars, said sections secured to said cylinder, spaced axles connecting said bars, pinions mounted onv said axles between said parallel bars and meshing with said rack bars, rollers mounted on said parallel bars and bearing against said rack bars for guiding the same and rollers mounted on said end sections and bearing against the rack bars adjacent said end sections. l

ln testimony whereof I have signed my name to this speciieation in the presence of two subscribing witnesses.

DAVID J'. MUN OY.

Witnesses :I 

